import json
import requests
from markdownify import markdownify
from bs4 import BeautifulSoup

misperrors = {'error': 'Error'}
mispattributes = {'input': ['url'], 'output': ['text']}
moduleinfo = {'version': '0.1', 'author': 'Sami Mokaddem',
              'description': 'Simple HTML fetcher',
              'module-type': ['expansion']}


def fetchHTML(url):
    r = requests.get(url)
    return r.text


def stripUselessTags(html):
    soup = BeautifulSoup(html, 'html.parser')
    toRemove = ['script', 'head', 'header', 'footer', 'meta', 'link']
    for tag in soup.find_all(toRemove):
        tag.decompose()
    return str(soup)


def convertHTML(html):
    toStrip = ['a', 'img']
    return markdownify(html, heading_style='ATX', strip=toStrip)


def handler(q=False):
    if q is False:
        return False
    request = json.loads(q)
    if request.get('url'):
        url = request['url']
    else:
        return False
    html = fetchHTML(url)
    html = stripUselessTags(html)
    markdown = convertHTML(html)

    r = {'results': [{'types': mispattributes['output'],
                      'values':[str(markdown)]}]}
    return r


def introspection():
    return mispattributes


def version():
    return moduleinfo